Today is the 50th anniversary of the assassination of liberal icon Robert F. Kennedy, the senator, attorney general, and brother to a murdered president. Decades later, as Democrats seek to forge a winning coalition after their devastating loss in the 2016 election, they should put away the polls and look to the message RFK espoused just before he was killed. If you had to sum up Kennedy's campaign for president in 1968 in a single word, it would be reconciliation.